In an attempt to bring back his unbeatable aura Novak Djokovic has come to a part-time coaching arrangement with none other than Andre Agassi at Wimbledon this year.

The American won eight grand slams in his stellar career, but his help wasn’t able to carry the Serbian to glory in the French Open. He does have a bald head though – so with the help of Photoshop, here’s a quiz all about that…